Coke oven gas is desulfurized at the gas collection point
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After coming out of the rising pipe, coke oven gas does not need to be cooled with high-pressure ammonia water. In its gaseous state, the gas passes through a catalyst at a high temperature, where a cracking reaction takes place that converts the organic sulfur in the gas into inorganic sulfur. Subsequently, the gas is cooled, and it then enters the chemical product recovery unit, where the chemical products are recovered. Wet desulfurization is used to remove all the inorganic sulfur. Reduce the impact of subsequent sulfur production on manufacturing. Of course, if the preceding steps are not handled properly, carbon deposition can occur, affecting the tar recovery rate; moreover, tar entering the catalyst can cause blockages in the reaction tower and other issues. Is the advantage of doing this greater than the disadvantages, or is it just an idea?
The key issue is that the gas produced is too dirty; it’s not clear whether the catalyst can function under such conditions, as catalysts are most vulnerable to deactivation or poisoning.
I agree with this view; I’m also trying to find a way!
Let’s consider the first question first: for gas at 650 degrees, without any cooling step prior to desulfurization, what diameter should the gas pipeline have? How to insulate pipes?